What do you use to seal.

Ok, I need to know what you guys suggest for sealing a box. On my last one I used a hot glue gun and I think it worked alright. Could I do this again or should I use something else? Will regular silicone work? or what about liquid nails.

Also, Any ideas on what to use to seal where the sub meets the box. Would felt work?

Re: What do you use to seal.

i use wood glue for the buildin process... then i throw on liquid nails on the inside of all the seams.... it only cost me 1.92 for a tue of liquid nails where i live, plus with my emplyee discount at ace... but i think that using Liquid nails for holdin the box together is pointless becuz like btnhfan said above, it only forms a surface bond to the materials its touching... so its pointless having a bond on the surface when the glue acts as wood itself...